Owner's Manual

LK3-B438E Mark II

7. CORRECT USE

7-1 . Selecting the needle and thread

TQ × 1 #11

TQ × 1 #12

TQ × 1 #14

Thread

#60

#50

Button hole diameter

1.5mm or greater

1.6mm or greater

1.7mm or greater

Needle

Approx. 40mm

[When using the liquid cooling tank]

Turn off the power switch before threading the thread, otherwise the machine may operate if the

foot switch is depressed by mistake and serious injury could result.

Turn off the power switch before installing

the needle, otherwise the machine may

operate of the foot switch is depressed by

mistake and serious injury could result.

Refer to the table at right for details on which needle

and thread to select.

NOTE: Use buttons which have a hole diameter that is

greater than the value given in the table, to ensure

that the needle does not touch the button.

7-2 . Installing the needle

CAUTION

Loosen the set screw q, insert the needle w as far as

it will go so that the groove is facing toward you, and

then tighten the set screw q.

7-3 . Threading the upper thread

Thread the upper thread correctly as shown in the illustration below.

* If the tension release lever q is raised in the direction of the arrow, it will be easier to open the tension disc

w and pull the thread through.

7. CORRECT USE